Listen to hyper link event by JEditorPane in Java

/* w w w  . jav  a2 s  .c o  m*/
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.net.IDN;

import javax.swing.JEditorPane;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.event.HyperlinkEvent;
import javax.swing.event.HyperlinkListener;

public class Main extends JFrame implements HyperlinkListener {
  private JTextField txtURL= new JTextField("");
  JEditorPane ep = new JEditorPane();
  private JLabel lblStatus= new JLabel(" ");

  public Main() {
    setDefaultCloseOperation(EXIT_ON_CLOSE);
    JPanel pnlURL = new JPanel();
    pnlURL.setLayout(new BorderLayout());
    pnlURL.add(new JLabel("URL: "), BorderLayout.WEST);
    pnlURL.add(txtURL, BorderLayout.CENTER);
    getContentPane().add(pnlURL, BorderLayout.NORTH);
    getContentPane().add( ep, BorderLayout.CENTER);

    getContentPane().add(lblStatus, BorderLayout.SOUTH);

    ActionListener al = new ActionListener() {
      public void actionPerformed(ActionEvent ae) {
        try {
          String url = ae.getActionCommand().toLowerCase();
          if (url.startsWith("http://"))
            url = url.substring(7);
          ep.setPage("http://" + IDN.toASCII(url));
        } catch (Exception e) {
          e.printStackTrace();
          JOptionPane.showMessageDialog(Main.this, "Browser problem: " + e.getMessage());
        }
      }
    };
    txtURL.addActionListener(al);

    setSize(300, 300);
    setVisible(true);
  }
  public void hyperlinkUpdate(HyperlinkEvent hle) {
    HyperlinkEvent.EventType evtype = hle.getEventType();
    if (evtype == HyperlinkEvent.EventType.ENTERED)
      lblStatus.setText(hle.getURL().toString());
    else if (evtype == HyperlinkEvent.EventType.EXITED)
      lblStatus.setText(" ");
  }

  public static void main(String[] args) {
    new Main();
  }
}